Adjustment Layers in Photoshop

An Adjustment Layer is a special Photoshop layer that applies an image adjustment without directly changing the original image layer.

Original Image
      ↓
Adjustment Layer
      ↓
Edited Appearance

The original image remains available for further editing.

Adjustment Layers provide a flexible and non-destructive way to edit photographs and designs.

• Correct brightness
• Adjust contrast
• Change colors
• Create black and white effects
• Apply creative color effects
• Use layer masks
• Edit adjustments later

Adjustment Layers can be created from the Layers panel.

Layers Panel
     ↓
Create New Fill or Adjustment Layer
     ↓
Choose Adjustment

You can then select the adjustment you want to apply.

Photoshop provides many different Adjustment Layers.

• Brightness/Contrast
• Levels
• Curves
• Hue/Saturation
• Color Balance
• Black & White
• Exposure
• Vibrance
• Photo Filter
• Selective Color

Brightness/Contrast allows you to control the overall brightness and contrast of an image.

Brightness
    ↓
Light / Dark

Contrast
    ↓
Difference Between Light and Dark

It is useful for quickly improving the overall appearance of a photograph.

Levels provides more detailed control over shadows, midtones and highlights.

Black Point
    ↓
Shadows

Midpoint
    ↓
Midtones

White Point
    ↓
Highlights

Levels is useful for correcting tonal range and contrast.

Curves provides precise control over the brightness and contrast of an image using a graph.

You can create control points and adjust different tonal areas independently.

Hue/Saturation can change the color, intensity and lightness of an image.

Hue
  ↓
Color

Saturation
  ↓
Color Intensity

Lightness
  ↓
Brightness of Color

Color Balance allows you to adjust relationships between colors in Shadows, Midtones and Highlights.

Cyan ↔ Red
Magenta ↔ Green
Yellow ↔ Blue

It is useful for correcting color casts and creating warm or cool color moods.

The Black & White Adjustment Layer converts a color photograph into grayscale while allowing individual color ranges to be controlled.

It is useful for portraits, artistic photographs and dramatic designs.

Exposure allows you to control the exposure and tonal appearance of an image.

It can be useful for correcting photographs that appear too dark or too bright, but it should be used carefully.

Vibrance increases color intensity with a more selective approach than simply increasing Saturation.

It can be useful for making dull photographs more colorful while trying to avoid excessive color intensity.

Photo Filter can add a color tone to an image.

It can create warm or cool effects and can be useful for creative color grading.

Photo
  ↓
Photo Filter
  ↓
Warm / Cool Appearance

Selective Color provides detailed control over color components within different color ranges.

It is useful when you need more precise color correction or creative color grading.

Adjustment Layers automatically work with a layer mask. The mask allows you to control where the adjustment appears.

Adjustment Layer
      +
   Layer Mask
      ↓
Selective Adjustment

This is one of the most powerful features of Adjustment Layers.

Painting black on the adjustment layer's mask hides the adjustment from the painted area.

Adjustment Mask
      ↓
Paint Black
      ↓
Adjustment Hidden in That Area

This allows you to protect selected areas from the adjustment.

Painting white on the adjustment mask reveals the adjustment in that area.

Adjustment Mask
      ↓
Paint White
      ↓
Adjustment Visible

This makes it easy to restore an adjustment after hiding part of it.

One major advantage of Adjustment Layers is that their settings can be changed later.

1. Select the Adjustment Layer.
2. Open its Properties.
3. Change the adjustment settings.
4. Observe the updated result.

You do not need to permanently modify the original image pixels.

You can reduce the opacity of an Adjustment Layer to make the effect less intense.

100% Opacity
     ↓
Full Effect

50% Opacity
     ↓
Reduced Effect

This is useful when an adjustment looks too strong.

Multiple Adjustment Layers can be used together.

Brightness/Contrast
        ↓
Levels
        ↓
Hue/Saturation
        ↓
Color Balance
        ↓
Final Image

Each adjustment can be controlled separately.

Adjustment Layers are useful for improving portrait photographs.

• Adjust brightness
• Improve contrast
• Correct color
• Improve skin tone carefully
• Create black and white effects

Layer masks can help apply adjustments only where required.

Adjustment Layers can help create a consistent color style across poster photographs and graphics.

Photos
   +
Adjustment Layers
   +
Text
   +
Shapes
   ↓
Consistent Poster Design

You can improve a dark photograph using an Adjustment Layer.

1. Open the photograph.
2. Create a Brightness/Contrast Adjustment Layer.
3. Increase brightness carefully.
4. Adjust contrast if necessary.
5. Check the highlights.
6. Use the mask if some areas should remain unchanged.

Use an Adjustment Layer to create a different color mood.

1. Open a photograph.
2. Create a Color Balance Adjustment Layer.
3. Adjust the Shadows.
4. Adjust the Midtones.
5. Adjust the Highlights.
6. Reduce opacity if the effect is too strong.
7. Compare the result with the original.

Create a selective black and white effect using an Adjustment Layer and its mask.

Color Photo
     ↓
Black & White Adjustment Layer
     ↓
Layer Mask
     ↓
Hide Effect on Subject
     ↓
Subject Remains in Color

• Using too many adjustments
• Making color changes too strong
• Ignoring the layer mask
• Using excessive contrast
• Making skin tones unnatural
• Ignoring layer order
• Forgetting to name important layers
• Not comparing the final result with the original

Practice Adjustment Layers using one photograph.

1. Open a photograph.
2. Create a Brightness/Contrast Adjustment Layer.
3. Create a Levels Adjustment Layer.
4. Create a Hue/Saturation Adjustment Layer.
5. Change the settings of each layer.
6. Turn each layer on and off.
7. Change the opacity of one adjustment.
8. Use its layer mask.
9. Compare the edited image with the original.
10. Save the project.

Create a professional-looking enhanced photograph using multiple Adjustment Layers.

Original Photo
      ↓
Brightness / Contrast
      ↓
Levels
      ↓
Color Balance
      ↓
Hue / Saturation
      ↓
Layer Masks
      ↓
Final Photo

Keep each adjustment separate so that you can edit the settings later.

1. Open the original image.
2. Keep the original layer safe.
3. Create Adjustment Layers instead of directly editing pixels.
4. Start with basic tonal corrections.
5. Adjust colors carefully.
6. Use layer masks for selective corrections.
7. Reduce opacity when an effect is too strong.
8. Rename important Adjustment Layers.
9. Compare with the original image.
10. Save the Photoshop project.

Adjustment Layers provide a powerful non-destructive way to edit brightness, contrast, color and other image properties.

Common Adjustment Layers include Brightness/Contrast, Levels, Curves, Hue/Saturation, Color Balance, Black & White, Exposure, Vibrance, Photo Filter and Selective Color.

Adjustment Layers can be edited later, combined with other adjustments, controlled with opacity and used with layer masks. They are an essential part of a professional Photoshop workflow.